A foundation year which takes place at an actual university (like a year 0) does require A-levels. These years are funded by student finance and you can stay in Halls, so it's basically just a degree that takes four years rather than three. Some of these courses do allow people with lots of relevant work experience in the subject area, but I'm not sure if this applies to you.
However, if you don't have A-levels, your local further education college should have 'Access' courses which normally take a year to complete and can be used as a replacement for A-levels and you can use it to apply to University to study whatever course you like - as long as you have completed relevant modules. Some colleges have 'Access to Humanities', 'Access to Science' and 'Access to Health Professions' courses, so you have to pick which is relevant to the degree subject you wish to study. Furthermore, these courses are NOT funded by student finance and will have to be paid for privately and the cost can vary, but they are not normally any more than £5000. Also most universities don't publish their access requirements as entry this way is in the minority, so you will have to contact them directly.